Chapter 16 Solubility (Student)

Chapter 16 Solubility (Student) - 16.0 Solubility...

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Unformatted text preview: 16.0 Solubility Equilibria 16.1 Definition Solubility is the quantity of solute that dissolves in a given quantity of solvent to form a saturated solution (measured in kg/m 3 , g/cm 3 etc.) The solubility of a substance depends on the temperature. Molar solubility is the number of moles of solute per liter of the saturated solution (mol/L) 16.2 The Solubility Product Constant, K sp Many important ionic compounds are only slightly soluble in water. In fact, we often use the term insoluble to describe such ionic compounds. Assume that in a saturated solution an equilibrium exists between the solid salt and its dissolved ions. For example, the equilibrium :- M x A y (s) xM y+ (aq) + yA x- (aq) The concentration of the solid is constant and therefore be included with the constant K c , so that where K sp is called the solubility product constant or simply the solubility product. In general, the solubility product of a compound is the product of the molar concentrations of the constituent ions, each raised to the power of its stoichiometric coefficient in the equilibrium...
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Chapter 16 Solubility (Student) - 16.0 Solubility...

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